Improved bending machine



nith tetes @anni ffnrt.`

JOHN N. WOODWARI), Ol" AURORA, ILLINOIS.

Lf'ttl'rrr .Patent .N 69,060, Jafar] is'cpfcmbcr 17, 1807.

IMPROVED BENDING MACHINE.

tithe .tlgrttlrnfcmt it iniigrse rttus nlrat mit mating part af tigtsamt.

T ALL WIIOM I'I MAY CONCERN:

Be it known that I, JOHN N. WQODWARD, of Aurora, in the countyof Kane,and State of Illiuoisyhnve invented a new and improved Device forBending or Swaging Sheet-Metal Plates for Covering Sashes for Greeii-I'Ionses, Skylights, etc., etc.; and I do hereby declare that thcfollowing is a full,clcar, and exact description thereof, which willenable those skilled in the art tonnalte and use thesame, referencebeing had to the aceon1- an in# drawinffs forminor art of thissiecifica-tion.

This invention relates toa new and improved device for bending or.swagingsheet-metal plates for covering p the exterior portions of sashesfor greenhouses, skylights, etc., etc.

-The object ofthe invention is to obtain a device for the purposespecified which will be simple in constructien,` capable of beingmanipulated with facility, and which will admit of the work beingperformed with rapidity,l

and in a perfect manner. In the accompanying sheet of drawings;

Figure l is a transverse vertical section of my invention, taken in theline :e af, fig. 2. Figure 2,1 front sectional view of the same, takenin the line y y, iig. 1.

Similar letters of reference indicate corresponding parts.

A represents a bed-plate, having a vertical rod, B, secured in cach endof it, witlna longitudinal rib, C, on the bed-plate between the tworods,said rib being of .square or other forni inits transverse section,corresponding D represents a cap, having a. hole init p near each end toadniit ot' being placed on the rods B B. This cap has two longitudinalbars a a secured to `its under side by screw-bolts b I), the latterpassing through oblong slots inthe cap `to admit of the bars a a beingadjusted at a greater or less distance apart to suit the width of therib C, said barge n being prevented from casually moving by lateralsot-screws c c, which pass through pendent ears cl d at the front andrear sides of the` On the vertical rods Il B there are placed spiralsprings c, on which lthe cap" to the forni ofthe sash strips which theswagcdshcet metal is to cover.

cap D, as Vshown 4clearly iu iig. 1. y D rests; and in the bed-plate Athere is itted a spring, E, which passes up through a mortise, f, in thebedplate, as shown clearly in fig. 1, the iuortise f being sufficientlywide to admit of the spring being adjusted further forwarder backward,te suit the width of the plate to be swagcd. F is a. spring, constructedof a steel strip, bent or carved in semi-elliptic form, and having itsends notched longitudinally to fit on pins g in the under side of thecap D, between the two bars a a. On the rear part of the bed-plate Athere are two adjustable i gauges h h; and two upright lugs are attachedto the rear ot' the bed-plate about midway between the gauges, a lever,G, being secured between the lugs z' t' by a pin, j.

'Ihe operation is as follows: The sheetmotal strips are cnt of therequired length and width, and placed on l the rib C underneath the capD, the latter being kept elevated by the springs c @and the gauges t hadmitting of the strips being adjusted centrally over the rib, so thatan equal portion will project over or beyond each side i of the rib. Theoperator then, by means of the lever Gr, forces down the cap D, and thebars et a will swage the metal strip down over the rib and onY thebed-plate A, as shown in iig. 1. In` forcing down the cap D the spring Fis compressed, and the spring E shoved down, neither of said springsinterfering with the swuging.` ,opcrdtiom 0n releasing the lever G thesprings c on the rods B B will raise the cap D, while the springF willprevent the swaged strip from sticking between the bars a a; and thespring E will raise the swaged Strip up fromthe rib C, so that it may bereadily detached or removed.

The device, it will be seen, is extremely simple and eicicnt, may hcopcratcdwith the greatest facility, and

manufactured at a trifiing cost.

I claim as new, and desire to secure by Letters Patent- 1. 'Iho rib C onthe bed-platc A, in combination with the cap D and adjustable bars asn., said parts being; arranged to operate substantially in the manner asand for the purpose set forth.`

2. 'lhc springs I" E, respectively in bed-plate A and cap D, arranged inconnection with the rib C and adjustable bars a a, to insure the readyremoval of the swaged sheet-metal strip, substantially as described.

The combination of the cap D, provided with the adjustable bars u a, andplaced on the rods B B, having springs u upon them, the rib C on thebed-plate A, und the lever G, all arranged for joint operation substan-`tially as and for the purpose .set forth.

l JOIIN N. WOODWARD.

Wi tnesses:

II. F. VAN Non'rwiclt. (il-:onlin Mon'roN.

